Calculating-machine.



C. SCHALLIZR.

CALCULATING MACHINE.

- APPLICATION FILED JUNE 5,1915. 1,220,009. Patented M31220, 1917.

2 SHEETS-SHEET I.

aw'cews KS I zer 76 orne SCHALLER. CALCULATING MACHINE.

APPLICATION FILED J UNE 5. 1916.

Patented Mar. 20, 1917.

2 SHEETSSHEET 2.

am g 2 Fm Z i common vertical. axis of rotation.

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UNITED STATES PATENT ()FFIC- i.

31K831 SCHALLER, O1 BRUNSWICK, GIERMAlNY, ABSIGNOE T G-EZEMl-WLIG, EliltxalIS o C CQMI ANDITGESELLSCHAFT All}? .AGTIEN, O1? BRUNSVJ'IGK,

LE'IQN GERMANY,

GALCULATIN'G-JIL'AGHINE.

Specification of Letters Patent.

Application filed Liane 5, 13116. Serial-No. 101,?991.

0 all wiiom it may concern:

it linoivn that .i, CARL Sons-rims, workmaster, citizen of the Duchy of Brunswick,

present invention relates to colci loting; meoiines, o d in. particular to calculating machines oi the character described and illustrates my United States Patent No. dated September l, 1914. Machines oi the character in view comprise a mocha i for s "'"ing up numbers and ,iten'is rated by means of keys wh ch operated, engage rocking hers hovii ig n8 the are extended and provided Jul shoulders which vary in number or-dance with the-value which the ree key is representing,the said. shoul- )ereting with a corresponding numsaid locking hairs, At their ends vti rocking" bars carry controlling members perform :1 setting movement paraxis of the driving mechanism said bars are being rocked through r respective keys. The thus shifted conmembers cooperate with EL revoluhle rovided in conjunction. with each. regnumeral disl; and revolving with the ving mechanism of the machine; the said 1 thereby caused to assume an op ion in consequence of which the red with the associated numeral now portokes oi? the revolving of the tooth andrenders the value the swinging of the corresponding adopt number oi rocking oars, visible in the occumechanism.

is the object of my present invention to rovide for iiu rovements in the construc- 011 of the mechanism used the accumulating mechanism. By means 01. the novel improvements it is prevented that two keys of the some denominational value can be depressed si1nultoneousiy nor can these two keys occupy the depressed position simultaneously Through my present invention the construction of the cciculoting machine is simplified consideu ably and its rel" ility greatly enhanced.

I wi l now describe my invention in detail W'th c 'rencc to the accompanying drew merit of the some by way of ex:

ings in which I have illustrated on embodioplc; Jig,- ure 1 representing in a side view one column of keys and the parts cooperating there with; Fig. 1 shows the driving and setting mechanism in a" View seen from the left in Fig. 1 while Fig, 2 shows in. oplon view, the swinging shift bars scripted. to he setuated by the key stems, with one key stems in operative position. is cross sew tional view through it column of keys seen from the right in l; the key visible being in inoperative position, while Fig. 4

at similar view with one key stein in onerotive position. i

In the improved'eo "'ruction according to my novel invention, he hey stems 6 are of a short length. Each of the nine control.- ling members novided in conjunction with each column of keys, is mounted on a swinging frame comprising two substantially parallel levers 7 end 2 bridged by a connection bar 3 and pirotslly :orricd by it horizontal her 1 whic forms the coi'uinon support for the entire set of nine frames At its ex UGiDGi lIO lever T curries the respective controlling member '10 while the lever 2 is provided at its upper it 1 two projections l and 5 extending lzicemll in opposite directions. lo the example shown in the drewirsgs to illustrate the invention, the 'ii'ojecu ons extending to the left of 1 are designated by the reference numeral l, while each opposite projection of the some lever is uuirked 5. The arrangement of the projections o5 two adjoining levers 2 is so that each pr I ction 5 of the lever 2 overlaps the adjoining projection i of the cousccutive lever 2. The proj ectioris i are rooflike inclined toward the front in Fig. l, and t ic key stems 6, at their lower ends, are provir ed with a front face inclined in the opposite direction. On depressing one of the keys, for instance, the key representing the value l in Fig. 1 its stem end enters between the projection 5 of the lever 2 and the inclined face of the projection 4% carried by uses the levers 2h 2,to participate in the swinging movement, whereby in addition to the controlling member 10 of the lever 2 which is directly moved by its associated key stem 3, all the controlling members 1.0 adapted to be directly actuated by keys representing lower values than the depressed key, are shifted also;

Thanks to the thus described arrange ment it is rendered impossible that two keys representing values of equal denominational order can be simultaneously depressed, or can simultaneously occupy the depressed position. For, if a key is being depressed the coacting lever 2 of which has been previously swung out of its normal position through depression of a key of .a higher value, as for instance the key provided for the value 1, the respective key stem 6, in its displacing action, would then return the swung out levers on the side on which the values are increasing, that is, the levers 2, 2*, and 2", and would lock the rest of the swung out levers against participating in the returning movement.

For locking the keys in their depressed position and for auton'iatically releasing the depressed keys on depression of another key in the same column, a yielding latching plate 8 is provided, having a laterally extending ledge 8 which is below the inclined shoulder face 15 of the keys when the latter are in their elevated position. When a key is being depressel its inclined shoulder face 15 rides over the ledge 8 and thereby shi ts the latching plate 8 out of the way of movement until. the rectangular shoulder face 9 gets below the ledge 9f whereupon the latching plate 8 is enabled to yield to the action of a spring indicated in Fig. 4, and locks the said-key stem in its depressed position.

On depression oi another key in the same column, the latching plate 8 is again 'displaced and thereby releases the key previously depressed and held locked against a return.

A tooth 1'1 provided to cooperate with those controlling members 10 that been shifted for that purpose by a depression of any of the keys in the column, and is adapted to thereby actuate an accumulatil'ig. mech anism 18 to transmit thereto the value set up by means of the keys. The said tooth 11 extends radially from afraniie l1 w iich carries a. sector having nine teeth opposite the said tooth 11 and is pivotally mounted on a disk 1)? which revolves with the driving shaft 12. An intermediate gear wheel 17 is provided between the sector 16 and the pinion of the accumulator 18, although the sector may just as Well engage the said pinion directly. When the sector is in the plane of the intermediate gear 17,. the sector will revolve the accumulator on the driving shaft 12 being turned by means of the han- (116 shown in Fig. 1. The diving connecessence tion is maintained as long as the sector 16 is retained in engagement with the wheel 17 by those of the controlling members 10 which have been shifted in. the direction of the arrow indicated in l in proximity to the connection bridge 3. The members-10, during their swinging movements are controlled by guides 25. On return of the tooth 11 to its normal position, shown in Fig. 1, the sector 16 having performed the carrying action required for the proper transmission of the set-up value, is laterally shifted while still in mesh with the wheel 17.

' To secure the said toothed sector 16 in its two extreme positions, viz. the operative and the inoperative position, there is provided a yielding locking pin 23 of well known (:(mstruction. The locking pin 23 is under the action of the spring .23 and is mounted in the revoluble disk 12 so as to cooperate with a bridge iii of the frame 11. While the frame ll 'is being swung the spring 23 others a slight resistance.

Through my present invention I am enabled to considerably simplify the construction of the calculating machine. it is now possible to dispense with the carrying mechanism described and illustrated in my United States Patent No. 11094:71, dated September 1, 1914:, since I am now' able to substitute therefor the carrying systemdescribed and illustrated, for instance, in the United States Patents No. 1075073, dated (lctober 7th, 1913, and No. 1088-185, dated February Qlth, 1914-, which carrying. system has proved its usefulness in actual practice in calculating machines in which driving or setting up wheels are applied having a va riable number of actuating teetln in connection with my present invention the restoration of the zero position of the accumu lating wheels 18 may be obtained in the manner as set forth in the United States Patents specified above.

It is obvious that in connection with my present invention, an accumulating mechanism may be used in which the numbers and items set up by means of the keys are visible at any time.

What I claim as my invention and desire trolling member eoepte. tobe moved into and out of coupiing position by said. controlling 2. A machine the character ii sciibeci, comprising, in combination with on econ inuieting mechanism, means for revolving the 1e, and a plurality of keys arranged in a column for ting up numbers and.

items, :1 plurality of Wmornied trainee one ach key, said frames ite about a common one one. each frame @iie accumulating mechanism min is positioned below j, a controlling member on ini ziiapted to pei foism & substantioiiy parallel i revol ing means, two if the em? oi'iction who.

ti projections z 5 i second min one of said projections adopted to be displaced by the essocieteii key thereby causing said frame to swing out of its norm-e1 position, and the second. projection being {adapted to be locked in 110"1'312Li osition by the adjoin in Rey towei'ei which said pi'ojec'ion ex: tends, each first projection oi? one one overlapping the juxeooosed second gorojection of the adjoining arm, whereby piui'oiity of arms can. be coupieo; to move synchronously in either direction Ween set in motion through any oi said keys, and in operative connection with said means for revolving sei occiiniuieting mechanism, i'evoiubie coupiieg member pteii to octn ate said accuinoiotioef inecn mom and to be shifted into the connection therewith by 'sei-l ng niembei', whereby said. i'cvoiube is e'osb same, piuraiity oi Keys in e coiunin for setting up numbers and items, a pie.

miity, of two-armed ironies one in congn -vion Wll'l-il each key, said. frames a 4 1 ML 1: a

common a f 10mm ing; circular path about the axis of revolving means, two oppositeiy disposed 6i": projections the end of said secon i arm, one said projections being edepte to be (lispiececi by the associated. key thereby causing we. frame to swing out of its normal posi ion, While the second projection be L pteci to be iocked in noi'xnzii position v rijoining key toward which said pi'ojection extends, each. first projection of one ei'in oveiiepping the juxtaposed second projection. or: the edjoining zn'in, whereby a' piui'eiity of ones can be coupled to move syncinronousiy when set-in inotion through any of ssici keys, resilient hitching bar in .P XZ'L'iUJYVQ connection with said keys, Whereby 2. previously 12 tche l key ismitometicaiiy on ciepi'ession of another key in; the same column, a i'ev olubie frame in positive connection with said yevoiving means the ends of said revolving means, a tooth on 'eid fierce and iisposed so as to swing through the circiiieir pethot said controlling members, toothed sector on said fume and opposite said tooth, said sector being rii-sposed so as to enter into actuating connection with said. accumulating mechanism e ien being Cit-S661 to swing by said co co! 11g members, the number of coniino' m bei's shifted determining the extent to which seiei accumulating mechanisni is actuated.

in testimony whereof have hereunto set my iienii in presence 0t two subscribing witnesses.

-Witnesses J1. Lemme, 

